'Dexter' season 7: 'Chuck' alum Yvonne Strahovski cast

The actress scored a multi-episode arc on season 7 of Dexter, playing a woman who helps Miami Metro Homicide solve some cold cases. But casting scoop warns: There’s more to Hanna McKay (Strahovski) than meets the eye, and Dexter (Michael C. Hall) is the first to suspect it.

This is the first post-Chuck television role for Strahovski, who played agent Sarah Walker on the show, which concluded its five-season run in January.

Production on the new season of Dexter began last week and it returns Sept. 30.